Alright, let's work through 45889036 times 86189120 step by step
45889036 × 86189120 = 86189120 × (45889036)
+ 86189120 × 6 that is equal 517134720
+ 86189120 × 30 that is equal 2585673600
+ 86189120 × 000 that results in 0
+ 86189120 × 9000 that results in 775702080000
+ 86189120 × 80000 giving us 6895129600000
+ 86189120 × 800000 that results in 68951296000000
+ 86189120 × 5000000 giving us 430945600000000
+ 86189120 × 40000000 what gives us 3447564800000000

= 3955135630488320
